One Month Dispensing Study Comparing the Clinical Performance of the Comfilcon A Sphere Lenses Compared to Comfilcon A Asphere Lenses.

This is a prospective, multi-center, subject-masked, bilateral wear, one month dispensing study comparing the clinical performance of the subjects' habitual comfilcon A sphere lens (control) following a refit with comfilcon A asphere lens (test). After the dispensing visit, subjects will return for follow-up evaluations after 2 weeks, and 1 month. Both comfilcon A sphere lens (control) and comfilcon A asphere lens (test) are Coopervison lenses.